JEE Main 2023ChemistryIonic EquilibriumMediumMCQ

JEE Main 2023 — Ionic Equilibrium Question with Solution

JEE Main 2023 (31 Jan Shift 2)

Question

Incorrect statement for the use of indicator in acid-base titration is:

Choose an option

Show full solutionCorrect option: A
Correct answer
AMethyl orange may be used for a weak acid vs weak bas titration.

Step-by-step explanation

Methyl orange and phenolphthalein indicators work with the change in pH and are termed as acid–base indicators.

Methy lorange is sutable indicator for strong acid vs strong base and strong acid vs weak base titration.

Phenolphthalein is sutable indicator for strong acid vs strong base and weak acid vs strong base titration.

There is no suitable indicator that can be used in the titration of weak acid and weak base. So, the correct option is A.

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About this question

This is a previous-year question from JEE Main 2023, covering the Ionic Equilibrium chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.